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UNDATED (KTHV) -- The writer of Ghostbusters and Groundhog Day, Harold Ramis, has died.

TheChicago Tribune is reporting he died surrounded by his family just after midnight from complications of autoimmune inflammatory vasculitis. He was 69.

The Tribune reports, "Ramis' serious health struggles began in May 2010 with an infection that led to complications related to the autoimmune disease, his wife said."

By just looking athis page on IMDb.com you can tell he was an influential name in Hollywood in the 1980s and 1990s.

He is credited for writing and starring in the Ghostbusters in 1984, and he penned the screenplayfor and directed Caddyshack in 1980.

He also wrote Stripes (1981), Analyze This (1999), Analyze That (2002).

He was behind the camera for several classics such as National Lampoon's Vacation (1983), Groundhog Day (1993), and several episodes of The Office (2006-2010).

Everyone remembers him for his portrayal of Dr. Egon Spengler in the Ghostbuster franchise.